Headlights dim during breaking and other things that use power
 

Hi, everyone, I'm new. I probably should have taken my 2012 Mazda3 into the shop already, but I'm here on the internet instead.

Whenever I apply the breaks to stop or slow down, the headlights dim to a little over half power and then go back up and that process repeats its self until I'm no longer using the breaks. The lights also dim when I turn the fan all the way up, steer while I'm backing out of my drive way and when I roll the windows up/down.

Here's some information about the car: It's a 2012 Mazda3 Touring with the Skyactiv DOHC 4 cylinder engine. The dimming thing has been happening for about a year now, but it was always really slight. Now it's really obvious. I'm afraid that one night, the electrical system is just going to go out on me.

Definitely get both the Battery & charging system tested.

I have an appointment set for tomorrow. Thanks for the response.

Results?

What did you find out? Also - nice to meet another owner in the Minneapolis area!